3) riverbed deformation
河床变形
1.
The exchange between suspended silt and riverbed,sand graduation and riverbed deformation are taken into account in the model.
模型重点考虑了高浓度泥浆在输移扩散过程中与河床的交换以及泥沙级配、河床变形对水沙运动的影响,计算结果能为工程单位决策提供科学依据。
2.
To study the impact of downstream riverbed deformation due to changes of the water and sediment after the completion of the Three Gorges Project,this article introduces a method of BP neural network and its application by giving two examples;riverbank deformation and river section deformation of Shishou Bend in Jingjiang River respectively.
为了研究三峡工程建成后水沙条件的变化对下游河床变形造成的影响,引入BP神经网络的方法。
4) river-bed deformation
河床变形
1.
On the basis of mechanism of sediment exchange,some improvements in relation to the calculation method for river-bed deformation are performed.
根据泥沙交换原理,对河床变形计算方法进行了若干改进。
5) river bed deformation
河床变形
1.
An experimental research on river bed deformation near piers is reported in this paper.
对桥渡附近的河床变形进行了实验研究,认为在桥墩走向与主流方向存在一定偏角时,桥墩附近的水流结构和河床变形将会不同于没有偏角时的情况,如增大阻水宽度,起到导流作用,使局部冲刷坑增大变深,以及能使下游一定范围内主流位置和深槽位置向某一侧发生偏移。
6) deformation of riverbed
河床变形
1.
The sediment concentration and the deformation of riverbed of this model are verified by the measured date.
采用环境流体动力学数学模型考虑边界条件建立二维泥沙数学模型,用实测资料对模型的含沙量以及河床变形进行验证。
补充资料:冲裁过程变形分析
一、冲裁过程
冲裁变形过程可分为三个阶段:第一阶段:弹性变形阶段(图2一la)
图2-1 冲裁变形过程
凸模与材料接触后,先将材料压平,继而凸模及凹模刃口压人材料中,由于弯矩M的作用,材料不仅产生弹性压缩且略有弯曲,随着凸模的继续压入,材料在刃口部分所受的应力逐渐增大,直到h
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条